如何使用 MEAN 堆栈(MySQL、Express、Angular、Node)将数-数据库问题

how to insert data into database using MEAN stack (MySQL, Express, Angular, Node)(如何使用 MEAN 堆栈(MySQL、Express、Angular、Node)将数据插入数据库)

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问题描述

如何使用 MEAN 堆栈(MySQL、Express、Angular、Node)将数据插入数据库?我在插入时遇到了问题.请帮我解决这个问题.这是我的代码.我是 MEAN 的新手.

index.html

<头><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"><标题>注册页面</title><身体><div class="container" ng-app="bookitnow" ng-controller="myCtrl"><h1>注册</h1><form method="post"><div class="form-group"><input type="text" class="form-control" id="firstName" ng-model="fname" placeholder="First Name" required><div class="form-group"><input type="text" class="form-control" id="lastName" ng-model="lname" placeholder="Last Name" required>
<div class="form-group"><input type="email" class="form-control" id="email" ng-model="email" placeholder="Email Address" required>
<div class="form-group"><input type="text" class="form-control" id="phone" ng-model="phone" placeholder="Phone" required>
<button type="submit" class="btn btn-info" ng-click="submit()">提交</button></表单>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.min.js"></script><script src="controllers/controller.js"></script></html>

server.js

var express = require("express");var app = express();var bodyParser = require('body-parser');var mysql = require('mysql');var connection = mysql.createConnection({主机:'本地主机'，用户:'根'，密码 : ''，数据库:'bookitnow'});connection.connect(function(err) {如果(！错误)console.log('数据库已连接');别的console.log('数据库连接错误.');});app.use(express.static(__dirname + '/public'));app.get('/index.html', function(req, res){res.sendFile(__dirname + '/public' + 'index.html');});app.post('/index.html', function(req, res, next) {var data = req.body;console.log('收到请求:', 数据);connection.query('INSERT INTO register SET ?', data, function(err,res){如果(错误)抛出错误；console.log('记录插入');});app.listen(5500);console.log('你好，来自 server.js');

controller.js

var app = angular.module('bookitnow',[]);app.controller('myCtrl', function($scope,$http){$scope.submit = function() {变量数据 = {fName : $scope.fname,lName : $scope.lname,电子邮件:$scope.email，电话:$scope.phone}};$http.post('/index.html', &scope.data).success(功能(数据，状态，标题，配置){$scope.result = 数据；console.log("插入成功")}).错误(功能(数据，状态，标题，配置){$scope.result = "数据:" + 状态；});

解决方案

在您的 controller.js 中，尝试以下操作，看看会发生什么.

var app = angular.module('bookitnow',[]);app.controller('myCtrl', function($scope, $http){$scope.submit = function() {变量数据 = {fName : $scope.fname,lName : $scope.lname,电子邮件:$scope.email，电话:$scope.phone};$http.post('/index.html', 数据).then(功能(响应){控制台日志(响应)}，功能(响应){控制台日志(响应)});};});

How to insert data into database using MEAN stack (MySQL, Express, Angular, Node)? I am facing the problem at the time of insertion. Please help me to solve this. Here is my code. I'm newbie in MEAN.

index.html

<html ng-app="bookitnow">
<head>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

    <title> Registration Page </title>
</head>
<body>
<div class="container" ng-app="bookitnow" ng-controller="myCtrl">
  <h1>Register</h1>
    <form method="post">
    <div class="form-group">
        <input type="text" class="form-control" id="firstName" ng-model="fname" placeholder="First Name" required>
    </div>
    <div class="form-group">
        <input type="text" class="form-control" id="lastName" ng-model="lname" placeholder="Last Name" required>
    </div>
    <div class="form-group">
        <input type="email" class="form-control" id="email" ng-model="email" placeholder="Email Address" required>
    </div>
    <div class="form-group">
        <input type="text" class="form-control" id="phone" ng-model="phone" placeholder="Phone" required>
    </div>

<button type="submit" class="btn btn-info" ng-click="submit()">Submit</button>

</form>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.min.js"></script>
<script src="controllers/controller.js"></script>

</body>
</html>

server.js

var express    = require("express");
var app = express();
var bodyParser = require('body-parser');
var mysql      = require('mysql');
var connection = mysql.createConnection({
   host     : 'localhost',
   user     : 'root',
   password : '',
   database : 'bookitnow'
});

connection.connect(function(err) {
   if (!err)
     console.log('Database is connected');
   else
     console.log('DB connection error.');
});

app.use(express.static(__dirname + '/public'));

app.get('/index.html', function(req, res){
    res.sendFile(__dirname + '/public' + 'index.html');
});


app.post('/index.html', function(req, res, next) {
  var data = req.body;
    console.log('request received:', data);

    connection.query('INSERT INTO register SET ?', data, function(err,res){
      if(err) throw err;
        console.log('record inserted');
    });  

app.listen(5500);

console.log('Hi from server.js');

controller.js

var app = angular.module('bookitnow',[]);
        app.controller('myCtrl', function($scope,$http){
        $scope.submit = function() {

            var data = {
                    fName   : $scope.fname, 
                    lName   : $scope.lname,
                    email   : $scope.email,
                    phone   : $scope.phone
                }   
            };

            $http.post('/index.html', &scope.data)
            .success(function (data, status, headers, config) {
                    $scope.result = data;
                    console.log("inserted successfully")
                })
                .error(function(data, status, header, config){
                    $scope.result = "Data: " + status;


                });

解决方案

In your controller.js, try the following and see what happens.

var app = angular.module('bookitnow',[]);
app.controller('myCtrl', function($scope, $http){
    $scope.submit = function() {

        var data = {
            fName   : $scope.fname, 
            lName   : $scope.lname,
            email   : $scope.email,
            phone   : $scope.phone
        }; 

        $http
            .post('/index.html', data)
            .then(function (response) {
                console.log(response)
            }, function(response){
                console.log(response)
            });
     };
});

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